package com.atguigu.tingshu.payment.service.impl;

import com.atguigu.tingshu.account.client.RechargeInfoFeignClient;
import com.atguigu.tingshu.common.constant.SystemConstant;
import com.atguigu.tingshu.common.result.Result;
import com.atguigu.tingshu.model.account.RechargeInfo;
import com.atguigu.tingshu.model.order.OrderInfo;
import com.atguigu.tingshu.order.client.OrderInfoFeignClient;
import com.atguigu.tingshu.payment.config.WxPayV3Config;
import com.atguigu.tingshu.payment.service.PaymentInfoService;
import com.atguigu.tingshu.payment.service.WxPayService;
import com.atguigu.tingshu.payment.util.PayUtil;
import com.atguigu.tingshu.user.client.UserInfoFeignClient;
import com.atguigu.tingshu.vo.user.UserInfoVo;
import com.wechat.pay.java.core.RSAAutoCertificateConfig;
import com.wechat.pay.java.core.exception.ServiceException;
import com.wechat.pay.java.core.notification.NotificationParser;
import com.wechat.pay.java.core.notification.RequestParam;
import com.wechat.pay.java.service.payments.jsapi.JsapiServiceExtension;
import com.wechat.pay.java.service.payments.jsapi.model.*;
import com.wechat.pay.java.service.payments.model.Transaction;
import jakarta.servlet.http.HttpServletRequest;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;

import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class WxPayServiceImpl implements WxPayService {

	@Autowired
	private PaymentInfoService paymentInfoService;

    @Autowired
    private OrderInfoFeignClient orderInfoFeignClient;

    @Autowired
    private RechargeInfoFeignClient rechargeInfoFeignClient;

    @Autowired
    private UserInfoFeignClient userInfoFeignClient;

    @Autowired
    private WxPayV3Config wxPayV3Config;

    @Autowired
    private RSAAutoCertificateConfig config;


    @Override
    public Transaction queryPayStatus(String orderNo) {
        QueryOrderByOutTradeNoRequest queryRequest = new QueryOrderByOutTradeNoRequest();
        queryRequest.setMchid(wxPayV3Config.getMerchantId());
        queryRequest.setOutTradeNo(orderNo);

        try {
            JsapiServiceExtension service = new JsapiServiceExtension.Builder().config(config).build();
            Transaction result = service.queryOrderByOutTradeNo(queryRequest);
            System.out.println(result.getTradeState());
            //  返回数据
            return result;
        } catch (ServiceException e) {
            // API返回失败, 例如ORDER_NOT_EXISTS
            System.out.printf("code=[%s], message=[%s]\n", e.getErrorCode(), e.getErrorMessage());
            System.out.printf("reponse body=[%s]\n", e.getResponseBody());
        }
        return null;
    }

    @Override
    public Transaction wxNotify(HttpServletRequest request) {
        //  xxx?name=xx;
        //  request.getParameter("");
        //  获取请求头数据;
        String wechatPaySerial = request.getHeader("Wechatpay-Serial");
        String wechatpayNonce = request.getHeader("Wechatpay-Nonce");
        String wechatTimestamp = request.getHeader("Wechatpay-Timestamp");
        String wechatSignature = request.getHeader("Wechatpay-Signature");
        //  获取原始报文：
        String requestBody = PayUtil.readData(request);
        // 构造 RequestParam
        RequestParam requestParam = new RequestParam.Builder()
                .serialNumber(wechatPaySerial)
                .nonce(wechatpayNonce)
                .signature(wechatSignature)
                .timestamp(wechatTimestamp)
                .body(requestBody)
                .build();
        //  防止消息重复发送！
        // 初始化 NotificationParser
        NotificationParser parser = new NotificationParser(config);
        try {
            // 以支付通知回调为例，验签、解密并转换成 Transaction
            Transaction transaction = parser.parse(requestParam, Transaction.class);
            //  返回数据
            return transaction;
        } catch (Exception e) {
            // 签名验证失败，返回 401 UNAUTHORIZED 状态码
            log.error(e.getMessage(),e);
            throw new RuntimeException("验签失败");
        }
    }

    @Override
    public Map<String, Object> createJsapi(String paymentType, String orderNo, Long userId) {

        //	声明一个变量存储支付金额：
        BigDecimal totalAmount = new BigDecimal("0.01");
        //	1.	保存支付交易记录; payment_info
        if (SystemConstant.PAYMENT_TYPE_ORDER.equals(paymentType)) {
            //	订单; -- 订单的金额从订单表中获取 order_info
            //	通过订单编号获取订单信息;
            Result<OrderInfo> orderInfoResult = orderInfoFeignClient.getOrderInfo(orderNo);
            Assert.notNull(orderInfoResult, "订单不存在");
            OrderInfo orderInfo = orderInfoResult.getData();
            Assert.notNull(orderInfo, "订单不存在");
            //	细节判断：
            if (!orderInfo.getOrderStatus().equals(SystemConstant.ORDER_STATUS_UNPAID)) {
                return new HashMap<>();
            }
            //	总金额；
            totalAmount = orderInfo.getOrderAmount();
        } else {
            //	充值; -- 从充值记录表中获取 recharge_info
            Result<RechargeInfo> rechargeInfoResult = rechargeInfoFeignClient.getRechargeInfo(orderNo);
            Assert.notNull(rechargeInfoResult, "充值记录不存在");
            RechargeInfo rechargeInfo = rechargeInfoResult.getData();
            Assert.notNull(rechargeInfo, "充值记录不存在");
            //	细节判断：
            if (!rechargeInfo.getRechargeStatus().equals(SystemConstant.ORDER_STATUS_UNPAID)) {
                return new HashMap<>();
            }
            //	总金额；
            totalAmount = rechargeInfo.getRechargeAmount();
        }
        log.info("支付金额：{}", totalAmount);
        paymentInfoService.savePaymentInfo(paymentType, orderNo, userId, totalAmount);
        //	2.	对应生成支付页面;
        JsapiServiceExtension service = new JsapiServiceExtension.Builder().config(config).build();

        // 跟之前下单示例一样，填充预下单参数
        PrepayRequest request = new PrepayRequest();
        Amount amount = new Amount();
        //  单位是：分
        amount.setTotal(1);
        request.setAmount(amount);
        request.setAppid(wxPayV3Config.getAppid());
        request.setMchid(wxPayV3Config.getMerchantId());
        request.setDescription("测试商品标题");
        request.setNotifyUrl(wxPayV3Config.getNotifyUrl());
        //  在微信内部：订单商户号叫out_trade_no; 在我们平台叫：order_no;
        request.setOutTradeNo(orderNo);
        Payer payer = new Payer();
        //  获取用户的openid;
        Result<UserInfoVo> userInfoVoResult = userInfoFeignClient.getUserInfoVo(userId);
        Assert.notNull(userInfoVoResult, "查询用户信息失败");
        UserInfoVo userInfoVo = userInfoVoResult.getData();
        Assert.notNull(userInfoVo, "查询用户信息失败");
        payer.setOpenid(userInfoVo.getWxOpenId());
        request.setPayer(payer);
        //  设置订单过期时间；
//        request.setTimeExpire(System.currentTimeMillis() + 1000 * 60 * 10);
        // response包含了调起支付所需的所有参数，可直接用于前端调起支付
        PrepayWithRequestPaymentResponse response = service.prepayWithRequestPayment(request);
        //  声明一个map 集合；
        Map<String, Object> result = new HashMap();
        //  赋值：
        result.put("timeStamp", response.getTimeStamp()); // 时间戳
        result.put("nonceStr", response.getNonceStr());   // 随机字符串
        result.put("package", response.getPackageVal());  // 订单详情扩展字符串
        result.put("signType", response.getSignType());   // 签名方式
        result.put("paySign", response.getPaySign());     // 签名
        //  返回数据
        return result;
    }
}
